fix dispose issue on read

app/lib/extensions/ref_cache.dart

@@ -23,7 +23,7 @@ import 'package:riverpod/riverpod.dart';
 
 extension CacheForExtension on Ref {
   /// Keeps the provider alive for [duration].
-  void cacheFor(Duration duration) {
+  KeepAliveLink cacheFor(Duration duration) {
     // Immediately prevent the state from getting destroyed.
     final link = keepAlive();
     // After duration has elapsed, we re-enable automatic disposal.
@@ -32,5 +32,7 @@ extension CacheForExtension on Ref {
     // Optional: when the provider is recomputed (such as with ref.watch),
     // we cancel the pending timer.
     onDispose(timer.cancel);
+
+    return link;
   }
 }

app/lib/presentation/controllers/website_title.dart

@@ -81,6 +81,8 @@ Future<WebPageInfo> pageInfo(
   Uri url, {
   required bool isImageRequest,
 }) async {
+  final link = ref.cacheFor(const Duration(minutes: 2));
+
   final tabId = ref.read(selectedTabProvider);
 
   int? proxyPort;
@@ -112,8 +114,8 @@ Future<WebPageInfo> pageInfo(
         proxyPort: proxyPort,
       );
 
-  if (result.isSuccess) {
+  if (!result.isSuccess) {
-    ref.cacheFor(const Duration(minutes: 2));
+    link.close();
   }
 
   return result.value;

app/lib/presentation/controllers/website_title.g.dart

@@ -6,7 +6,7 @@ part of 'website_title.dart';
 // RiverpodGenerator
 // **************************************************************************
 
-String _$pageInfoHash() => r'46eec6236555d37b5bbb4d8d887c5ee6ee0336e3';
+String _$pageInfoHash() => r'53380fbf9c67d494944330641cefbde9455cdb60';
 
 /// Copied from Dart SDK
 class _SystemHash {